59
Installation & Operation Manual
Please note that the brackets ([]) denote
screen status.
NOTICE
4.
Place the boiler into the active position by pressing the
RIGHT SELECT [ON] key (FIG. 11-1, page 67).
5. Locate the pinhole button below the RESET button on the
display board (FIG. 11-1). Insert a thin wire (such as a
paper clip) into the hole and press the button once and
hold for 5 seconds to place the boiler into Service Mode.
In Service Mode the boiler will fire at ignition speed and
will then modulate up to full fire.
6. Insert the probe from a combustion analyzer into the hole
left by the removal of the flue temperature sensor.
7. Once the boiler has modulated up to full fire, measure the
combustion. The values should be in the range listed in
Table 10A below. The CO levels should be less than
150 ppm for a properly installed unit.
If the combustion is not within the specified range,
reference the Troubleshooting Section of the Knight Wall
Mount Service Manual for possible causes and corrective
actions.
10
Start-up
(continued)
Check flame and combustion
(continued)
Set space heating operation
Determine controlling sensor
For space heating systems, the temperature control can be based
on one of three sensors; the inlet, outlet, or system supply
sensor. The SMART SYSTEM control is programmed at the
factory to control the temperature of the outlet sensor. The
control will automatically switch to the system supply sensor
once it is connected. If it is desired to base the temperature
control on the inlet sensor, the appropriate parameter must be
changed in the control. See the Knight Wall Mount Service
Manual for a detailed explanation of this procedure.
Verify space heat circulator mode
The Space Heating Mode controls both the system (primary)
pump (if connected), and the boiler (secondary) pump. When
the SMART SYSTEM control receives a space heating call for
heat, it turns on the system pump. If the boiler is not heating an
indirect DHW (Domestic Hot Water) tank, and the set point is
not met, it also turns on the boiler pump. After the space
heating call for heat ends, the system pump continues to run for
a short period of time. The system pump can be programmed
to run continuously, except during outdoor shutdown. If the
boiler pump was running, it continues to run for a short period
of time as well. These pump delays are factory set to 30 seconds.
If different delays are desired, the appropriate parameters in the
control must be changed. See the Knight Wall Mount Service
Manual for a detailed explanation of this procedure.
Adjust set point temperature
Table 10A
Flue Products Chart
8.
Once the combustion analysis is complete, test the
safety shutoff device by turning the manual shutoff
switch to the OFF position and ensuring that the boiler
shuts down and registers an alarm. Turn the manual
shutoff switch to the ON position, reset the control, and
return to Service Mode.
9.
Turn the main power off to the boiler and replace the
flue temperature sensor into the flue pipe connection.
10. Place the boiler back into normal operation.
You must replace the flue gas temperature
sensor to prevent flue gas spillage into the
room. Failure to comply could result in
severe personal injury, death, or
substantial property damage.
WARNING
Natural Gas
Propane
CO
2
O
2
CO
2
O
2
8.0% - 10%
3.0% - 6.5%
9.0% - 11%
4.1% - 6.9%
Please note that the brackets ([]) denote
screen status.
NOTICE
The NAVIGATION dial may be used during normal operation
to adjust the space heating and tank set point temperatures.
1.
From the Status Screen press the NAVIGATION dial.
2.
Turn the NAVIGATION dial counterclockwise to select the
appropriate set point.
3.
Press the NAVIGATION dial to adjust the temperature.
4.
Once the desired temperature is displayed, press the
RIGHT SELECT [SAVE] key.
5.
If necessary repeat Steps 3 and 4 to make adjustments to
additional set points.
6.
Press the RIGHT SELECT [HOME[ key to upload the
changes.
7.
If the RIGHT SELECT [SAVE] key is not pressed, the
new settings will be discarded.
